| MMDBr0013162 | Fe2+ | Iron(3+) | Periplasmic nitrate reductase | Reduction | RHEA | 34755880 |
| MMDBr0013330 | Adenosine triphosphate | ADP | Taurine import ATP-binding protein TauB | Transport | RHEA | 34755880 |
| MMDBr0013405 | Iron(3+) | Fe2+ | Copper-containing nitrite reductase | Reduction | RHEA | 34755880 |
| MMDBr0013840 | Hydrogen Ion | 12,18-didecarboxysiroheme | Siroheme decarboxylase alpha subunit | Decarboxylation | RHEA | 34755880 |
| MMDBr0014104 | (2R)-3-sulfolactic acid | Hydrogen Ion | (2R)-sulfolactate sulfo-lyase subunit alpha | Non-hydrolytic bond cleavage (or its reversal) | RHEA | 34755880 |
| MMDBr0024706 | Water | Hydrogen Ion | Hydroxylamine reductase | Reduction | RHEA | 34755880 |
| MMDBr0025387 | Iron(3+) | Hydrogen Ion | L-cysteine S-thiosulfotransferase subunit SoxA | Transfer of a L-cysteine S-thiosulfo group | RHEA | 34755880 |
| MMDBr0025621 | Iron(3+) | Hydrogen Ion | L-cysteine S-thiosulfotransferase subunit SoxA | Transfer of a L-cysteine S-thiosulfo group | RHEA | 34755880 |
